maxnumsum

#define _CRT_SECURE_NO_WARNINGS
#include "stdio.h"

#define INF 99999999
#define E 0.00000001

int main()
{
    int n[10] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }, f, l;
    long long in, c;
    scanf("%I64d", &in);
    c = in;
    while (c > 9)
    {
        n[c % 10]++;
        c /= 10;
    }
    f = c;
    l = n[0] + n[1] + n[2] + n[3] + n[4] + n[5] + n[6] + n[7];
    if (l || (n[8] > 1))
    {
        f--;
        n[9] += n[8] + l;
        l = 1;
        in = f;
        while (n[9])
        {
            in *= 10;
            in += 9;
            --n[9];
        }
    }
    printf("%I64d", in);
    return 0;
}